[Rsiena-help] Converting to Siena objects--memory overload

[Ruth Ripley]

Dear List,

Jennifer sent her data to me privately. I copy my comments to her here 
as I think it may be more generally useful.

Things slowed down drastically as soon as I started to use the network 
package (as.network command). You need to use an array of matrices for 
sienaNet not networks. To save time and space I would avoid doing 
anything from the network and sna packages in the same run as RSiena. 
RSiena is completely independent of them apart from using read.paj to 
convert pajek data files to matrices.

Ruth

On 16/02/2012 18:50, Ruth Ripley wrote:
> Dear Jennifer,
>
> I don't understand this, as sienaNet does very little processing and
> your objects should not be huge. I suggest you stop the process.
>
> Please can you help me with a bit more information: do the command
> sessionInfo() within an R session and send the result.
>
> It might also help to see the R commands you used to create the
> matrices. And if you would like to send me the data privately I could
> try it out for you.
>
> Regards,
>
> Ruth
>
> On 16/02/2012 18:14, Victor, Jennifer Nicoll wrote:
>> Hello users and experts:
>>
>> I am attempting to create a Siena object with my 3-wave matrices and
>> it’s taking an enormous amount of memory. I have three matrices of size
>> 555x555 and I have attempted the following command to create Siena
>> objects for my dependent variables:
>>
>> caucuses<-sienaNet(array(c(cauc109.net, cauc110.net, cauc111.net),
>> dim=c(555, 555, 3)))
>>
>> I have been running this on a virtual “supercomputer”: Dell PowerEdge
>> with Dual Intel X5650 Six Core Processors and 24 GM Memory. The datafile
>> is 10MB and the command has been running for 15 hours now (so far no
>> errors).
>>
>> Shall I continue to let it run? Have I done something wrong? I shudder
>> to think what will happen when I try to estimate a model!
>>
>> Thanks for your advice,
>>
>> Jennifer Victor
>>
>> ___________________________________________
>> Jennifer Nicoll Victor
>> Assistant Professor
>> Department of Political Science
>> University of Pittsburgh
>> 4600 Wesley W. Posvar Hall
>> (412) 624-7204
>> E-mail: jnvictor at pitt.edu <mailto:jnvictor at pitt.edu>
>> Homepage: http://www.polisci.pitt.edu/person/jennifer-nicoll-victor
>>
>>
>>
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>
>
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